1m is about an arms length away, you'll hardly be shouting at people from a vast distance.
The rules regarding who can meet up were explained in the same briefing about pubs re-opening.
6 people - as many different households as you like
Or
2 households - as many people as live in those 2 households.
You don't have to bubble so can meet with 1 household on 4th July and a different household on 5th July.
You need to social distance between households, that should be 2 mts where possible, where not possible it should be at least 1 mtr with additional mitigation such as face covering, face shield, Perspex screen, of facing each other, apparently there are 39 mitigation's which will be in the guidance.
Overarching guidance though was that these are things you CAN do, not necessarily SHOULD do, so we should all still try to keep our distance, be careful and do what we can to avoid transmission.